Shaft-lubricating system



FERDINAND W. KROGH; MARY L. KROGH, FANNIE I. CLARKE, G. A. KROGH, AND OSCAR PDULSEN BEING'LEGATEES BY COURT ORDER OF DISTRIBUTION OF THE ESTATE OF SAID FERDINAND W. KRDGH, DECEASED.

SHAFT LUBRICATING SYSTEM.

APPLICATION mzo MAY 23, 1918.

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Patented May 9, 1922.

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FERDINAND W. KROGH, OF SAN FRANCISCO, CALIFOIEIIA; DIARY L. KRGGH, FANNIE J. CLARKE, C. A. KROGH, AND OSCAR IFOULSEN, BEING LEGATEES BY COURT ORDER OF DISTRIBUTION OF OF SAID FERDINAND "W. KROGILHDEGEASED,

ASSIGNORS TO KROGH PUMP AND .MACIIINEBY COMPANY, 0.15 SAN FRANCISCO, CALIFORNIA, A CORPORATION 03? CALIFORNIA.

SHAFT-LUBRICATING SYSTEIi I,

Application filed May 23,

Z '0 all whom it may concern:

Be it known that I, FERDINAND W. Knocn, a citizen of the United States, residing at San Francisco, California, have invented certain new and useful Improvements in Shaft- Lubricating Systems, whereof the following is a specification.

This invention relates to vertical shafts and method of lubricating the same.

In explaining the invention I will illustrate it in the form in which such shaft is used with deep well pumps, for example.

In the accompanying one sheet of drawing I have illustrated the simplest form of the invention.

The figure shows the upper part of a vertical shaft, with the head frame and the lubricating system, in sectional elevation.

In the figure :1 represents the head frame which supports the shaft 2 and the lateral bearing 3 for the upper part of the same. On the upper part of the bearing 3 is mounted the tank 4, for containing lubricant 5. The weight of the shaft is supported by the hanging bearing which consists of the block 6, secured to the shaft by a set screw 7 or other device. The under side of the block is protected by a wear plate 8, and a similar plate 9 is applied to the top of the bearing 3. Between the two plates, 8 and 9, are a set of bearing pawls 10. Preferably these parts 6 to 10, are within the tank 4. Below the bearing 3, and preferably as close to it as convenient, is the cup 11, secured to the shaft 2. Enclosing the cup 11, and fixed to the frame, is the annular cup 12, whose upturned edge 13 is close under the bottom shoulder of the cup 11. The tank 4 is provided with a cover 14 to protect its contents. Thus the bearing of the shaft is entirely enclosed and protected from dust and dirt of all kinds. ()ther bearings of the shaft may be similarly protected. I have thought it suflicient to show only the upper bearing.

The tank 1, which is the supply tank for the entire lubricating system, being properly supplied with oil, or other lubricant, the said oil enters the bearing, through suitable channels in the usual manner. The surplus oil, and leakage, from the bearing, is received in cup 11, which revolves with the shaft, and overflowing its edge, is caught by annular Specification of Letters Patent.

Patented May 9, I

1918. Serial No. 236,243.

cup 12, which, being fixed, has no tendency to throw it out. The bottom of cup 11 is exteriorly grooved so as to leave a depending edge 15, overhanging the upper edge of cup 13, to prevent oil from creeping down below those parts. The oil received by cup 12, passes therefrom through a pipe 16 into a receiving tank 17 which should be large enough to receive the entire amount that can pass through the apparatus, and thus prevent its loss and the machinery and premises becoming smeared with it. The receiving tank 17 is provided with a protecting cover 18 and a faucet 19. Through the latter the contents of the tank may be withdrawn from time to time and returned to supply tank 4:, for further use.

If desired a lead or other caulking as 20, may be applied between cup 11 and shaft 2 to ensure absolute tightness at that point.

Having thus described my invention, and an embodiment of it, in the full, clear and exact terms required by law, and knowing that it comprises novel, useful and valuable improvements in the art to which it pertains, I here state that I do not wish to be limited to the precise construction and arrangement of the several. parts, as herein set forth, as the same may be variously modified by a skilled mechanic without departing from the spirit of the invention.

What I claim and desire to secure by Letters Patent of the United States, is the following, to-wit 1. In combination with a vertical suspended rotary shaft and its bearing, a lubricant supply tank on said bearing, a supporting block within said supply tank for said shaft, a receiving cup secured to said shaft below said bearing and adapted to receive waste lubricant therefrom, an annular fixed cup surrounding said receiving cup, provided with an upturned edge projecting upwardly below said receiving cup and adapted to receive over flow waste lubricant from said receiving cup.

2. In combination with a vertical susended rotary shaft and its bearing, a 111* bricant supply tank on said bearing formed integrally therewith, a block within said supply tank adapted to support said shaft, a receiving cup secured to said shaft below said bearing adapted to receive waste lubricant therefrom, an annular fixed cup surrounding said receiving cup provided with an upturned edge projecting upwardly below said receiving cup and adapted to receive over flow waste lubricant from said receiving cup and deliver same to a receiving tank.

3. In combination with a vertical suspended rotary shaft and its bearing, a lubricant supply tank above said bearing, a supporting block within said supplytank for said shaft, a receiving cup secured to said shaft below said bearing and adapted to receive waste lubricant therefrom, an annular fixed cup 

